/Engine/Plugins/Runtime/NetworkPredictionExtras/Source/NetworkPredictionExtras/Public/MockRootMotionSourceObject.h
Only called on CDOs - Is this class default object valid (or does it require subclassing to fill in required data) If true, this class gets a root motion source ID assigned and can be replicated If false, no ID and runtime error if this class is tried to be used
virtual bool IsValidCDO() const